Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  d2f48911a254460c02e1d16cb6395e53c538bcd5

Preview in close topic

Preview was unimplemented for the close topic actions, this patch
rectifies that.

As a side effect also fixes
Feature: Close and open topics browser test

Bug: 67379
Change-Id: I27336adc832e63b1b91e92e71b1e15ce41125109